Another tackle on San Diego's roster is King Dunlap, a backup and 20-game starter in four years with the Eagles.

Talking about the offensive line on April 1, Mike McCoy didn't name any starters. "We’re not going to lock anyone into one position today and say, 'Hey this is the starter,' " he said. "Everyone’s going to come up in with a clean slate and go from there."

The upcoming draft has several interesting tackle prospects, and Winston isn't the only unemployed right tackle. Andre Smith, coming off an excellent season with the Bengals, is also unsigned.

“I don’t think I’m asking for pie in the sky numbers," Winston said. "Middle of the road is fine. But, it’s also frustrating from the sense of, there's still a lot of teams with a lot of money to spend, but it doesn’t seem like anyone wants to spend it."